Holder for valves while being ground



F.'w. HECKLE'RL HOLDER FOR VALVES w same GROUND. APPLICATION FILED 13, 1920- 1,391,733,. PatentedSept. 27 1.

7 I, I 2 SHEETS-SHE ATTORNEYS F. w. HECKLER.

HOLDER FOR VALVES WHILE BEING GROUND. H

APPLICATION FILED-JULY 13. 1920.

Patented 861115.27, 1921. A

2 SHEETS- SHEET 2.

l m f To a?! er 710m it may concern ew I FREDERICK W. HECKLER, F DARBY, PENNSYLVANIA. f

Application filed July 13,

Be it known that I, FREDERICK W. HnoK- ILER, a citizen of the United States, residing at Darby, in the county of Delaware, State of Pennsylvania, have invented a new and useful Holder for Valves WVlnle Being Ground, of which the following 18 a specification.

holder for a valve while being ground, the

My invention consists of a device for holding a valve while being ground, the same embodying jaws which may be centered against the interior wall of the collar of the valve and avoiding marring or'grooving of the exterior of the latter by such aws, means for tightening said aws on the valvejand. retaining them firmly thereon and on a valve'seat, means for rotating the device and other details are provided whereby thegrinding action 'of, both the valve and its seat may be accomplished in a convenient, effective, steady and true manner as will be hereinafter set forth. The, invention is satisfactorily illustrated in the accompanying drawing, but the important instrumentalities' thereof may be varied, and so it is to be understood that the inventionis not limited to the: specific details shown and described, as; long as they are within the spirit or scope of the claims. Figure l-represents a side elevation of a same embodying my invention.

Fig. 2 represents a partial side elevation and partial verticalsection thereof.

Fig. 3 represents a view similar to Fig. '2 showing certain parts in different positions from those in Fig. 2.

c Fig. 4 representsa top. or plan view of the device on an enlarged scale.

V Fig; 5 represents a partial side elevation of another embodiment of the invention.

Similar numerals of reference indicate corresponding parts inthe figures.

Referring to the drawings.

1 designates a tubular head or whose lower portion are. pivoted the jaws 2 which depend therefrom and are of elbow form, the lower limbs 3 whereof are adapted to enter the'collar 4 of the valve 5 to be ground, the upper limbs 6 whereof are adapted to project inwardly towardeach other beneath the head 1.

The bore of said head. is threaded and has engaging with it the wide threaded portion 7 of the movable spindle 8, above which p rt n is the h e ded portion 9 thereof, it

stock on HOLDER FOR VALVE-S WHILE BEING GROUND.

Specification of Letters Patent. Patented Sept, 2'7, 1921 1920.. Se1'ia1 No.395,896;

- being noticed that said portions are of different diameters and have their threads re- -spectivelyright and left pitched, it being noticed also that the lower portion of the spindle enters the head 1 and its bottom end l() which isv about the bottom of the head is adapted to engage the. upper limbs 6 of the jaws 2.

The narrow threaded portion 9 of the spindle does not engagewith the threads of the bore of the spindle and so is adapted to slide freely thereon, but when the spindle is lowered when rotated the-threaded portion 7 thereof then engaging the threaded bore of the head, the lower end of the spindle is adapted to bear downwardly upon the limbs of the jaws. 2 whereby the lower limbs 3 of the latter arespread apart, this being occasionedwhen the aws are entered in the collar 4 of the Valve.

- In order tolretain'the jaws in normal or closed condition as shown in Fig. 2 there are connected with the side of the head the springs llwhich depend therefrom and engage the upper'portions' of the jaws 2 below the axes 12 thereof so as to force said jaws,

inwardly whereby the limbs 3 may readily enter the collar 4 preparatory totightening them therein. 1 r

On the narrow threaded portion:9 of, the spindle 8 above. the" head: 1 is the nut 13 which is adapted to-be jammed against the top of said head so that when the jaws are vadjusted'in the collar 4 and tightened there'- against said spind'le'and consequently the aws are prevented from movement anddisengaging the jaws from the collar.

The spindle 8 has its upper portion passing freely through the'cross'bar 14 on the valve casing 15, on the lower portion 16 of which-latter is mountedthe valve seat 17 on which the conical surface of the valve 5 is adapted to be placed and so be groundby the same the seatbei-ng also ground.

- Onth'e portion-of the spindle 8'below the crossbar 14. is the coil spring 1 8 which is I 1 adapted to bear against the underside of said cross bar and the collar 19 which is secured to said spindle by the screw 20whereby the spindle and connected parts are adapted to belowered thus forcing down the jaws 3 against the base of the collar 4 of the valve, and so assists in retaining said jaws in position on said base while also forcing the valve against the grinder so as to rem n p per y seated the eon.

with the jaws.

The spindle has thereon on its upper. end

the crank handle21 for rotating the same and so imparting by the intermediate members rotation to the valve 5 and cause the grinding of the latter on the seat 17 and vice versa.

The cross bar 14: is connected with the adjacent portions of the casing 15 by means of the bolts 22 which are passed through either of the slots 23 in said cross bar into the frame 15, it being removable from said frame, so convenient in manipulation of the device in applying and removing the valve to and from the same.

The operation is as follows The valve is presented to tliejaws so that the latter enter the same and rest on the base of collar, and the valve isplaced on the valve seat 17, said jaws being in closed condition.

The spindle is then rotated whereby itdepresses the upper limbs 6 of the jaws when the lower limbs of the jaws are forced out and so tightened against the inner face of the collar, the valve thus being firmly connected The jam nut 13 is also rotated on the spindle so asto tighten against the head, and so the spindle and head are clamped together as one. The spindle is then rotated whereby it communicates similar motions to the head and jaws and consequently to-the valve, and so the latter is rotated on the'seat 17 and thus both are efiectively' anduniformly ground, the valve being furthermore resiliently pressed down on the seat as grind ing continues due to the action of the spring 18. i l

When the work is accomplished, the nut 13 may be unscrewed when the spindle may be rotated on reverse direction and so relieve the jaws of their holding action'on the valve when the valve may be manipulated to be removed from the jaws and consequently from the grinding member, or the cross bar 14: may be disconnected from the casing 15 and the entire device with thevalve removed from the seat when the spindle may be ma nipulated to release the valve from the jaws. In Fig. 3 I show the aws 2 opened or spread to a great extentshowing that'the device is capable of grinding valves of vastly increased diameter over that shown in Fig. 1.

In Fig. 5, I show certain parts of the device in position adapting the device for holding a valve while being groundin a position reversed to that shown in Fig. 1, that is the valve grinding mechanism and jaws with the connections of the latter will be above the cross bar is of the frame, all other parts being assembled in harmony with the same.

Having thus described my invention what I claim new and desire to secure by Letters Patent, is

1. In a valve grinding device, a tubular head, a threaded spindle having a threaded portion engaging the threaded bore of the head and a narrow threaded portion which is portion engaging the threaded bore of the 4' head and a narrow threaded portion which is free from engagement with said threaded bore of the head, elbow-shaped jaws pivotally mounted on said head and having at top inturned limbs extending in the path of the spindle, jamming-means on the narrowed threaded portion of the spindle adapted to bear against said head, means resiliently pressingon the spindle to force the valve to its seat while beingground, and springs on the head bearing inwardly against said jaws adjacent their pivots to close said jaws.

In a valve grinding device, a tubular head, a mounted pivotally on said head. and depending therefrom,said jaws. having at the top inturned limbs extending in the path of the spindle in descending adapted to lower said limbs and spread said jaws into a collar of a valve, a cross. barconnectible with a'valve having said spindle pass freely therethrough, a movable collar on said spindle, and means for holdingithe former in adjusted position, and a resilient member intermediate of said collarand cross bar adapted to force down said spindle and consequently said jaws and press the valve upon its seat.

FREDERICK W. HECKLER;

lVitnesses:

JOHN A. \VIEDERSHEIM NJ: Bossmonn.

tii'eaded spindle therein, jaws 

